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-rw-r--r--resolv/netdb.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/resolv/netdb.h b/resolv/netdb.h
index 19bcc87fd8..41cf06f071 100644
--- a/resolv/netdb.h
+++ b/resolv/netdb.h
@@ -76,7 +76,7 @@ extern int *__h_errno_location (void) __THROW __attribute__ ((__const__));
# define NO_ADDRESS NO_DATA /* No address, look for MX record. */
#endif
-#ifdef __USE_XOPEN2K
+#if defined __USE_XOPEN2K || defined __USE_XOPEN_EXTENDED
/* Highest reserved Internet port number. */
# define IPPORT_RESERVED 1024
#endif